I have constant sweating nearly all the time without doing any activity should i be concerned? mostly back of neck and lower back constantly wet

Hyperhidrosis: Sweating is the body's air-conditioning system! you could die without sweating so it's important that people sweat but the type of sweating you have is of concern only if it is induced not when you're working or exercising heavily. If you are working out and you have sweating, that is normal and should not be attempted to be shut down in any way.